How is M.C.B. superior to the fuse wire?

M.C.B. is superior to the fuse wire in the following ways:

1. An M.C.B. switches off the circuit in a very short time (nearly 25 ms) as compared to a fuse wire which takes relatively longer to melt and break the circuit.
2. M.C.B. can be reset (i.e., raised up) after tripping, whereas fuse wire needs to be replaced after it has been tripped.
3. M.C.B. offers greater protection, flexibility, and safety compared to fuse wire.